[gtk+] (18 commits) Created branch wip/cssnode3

[Benjamin Otte <otte src gnome org>]

The branch 'wip/cssnode3' was created.

Summary of new commits:

  c0c79ee... stylecontext: Add gtk_style_context_save_to_node()
  dae2d9e... switch: Port to GtkCssNode
  18bd973... cssnodeutils: Add a bunch of utility functions for using no
  e6c7e03... switch: Port to cssnodeutils
  0f48806... box: Port to cssnodeutils
  4326e38... cssnode: Make classes APIs string-based
  f408c59... entry: Add a cssnode for icons
  cdd26d0... entry: Set style classes on entry icons upon state change
  aa00548... entry: Ignore the "icon-prelight" style property
  0d01ceb... entry: Prelight icons when pressed
  85d86d6... cssnode: Add gtk_css_node_add/remove_state() API
  cd87252... entry: Set the prelight flag on the CSS node
  52f58f1... entry: Use the :active state for pressed icons
  0e57785... entry: Set insensitive state on icon css node
  15582ef... entry: Make progressbar a CssNode
  c5d00ae... css: Add min-width/height CSS properties
  cb1cf06... cssnodeutils: Implement margins
  1af58dc... entry: Use cssnodeutils for the widget node